Home / 4,115.80-5,679.75-2,347.30

Finding the Fourth Proportional to 4,115.80, 5,679.75 and 2,347.30

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Solution

The fourth proportional to 4,115.80, 5,679.75 and 2,347.30 is: 3,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.80 : 5,679.75 = 2,347.30 : x
  2. Step 2: Convert to fraction form
    4,115.80/5,679.75 = 2,347.30/x
  3. Step 3: Cross multiply
    4,115.80x = 5,679.75 × 2,347.30
  4. Step 4: Simplify right side
    4,115.80x = 13,332,077.18
  5. Step 5: Solve for x
    x = 13,332,077.18/4,115.80
  6. Step 6: Final answer
    x = 3,239.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.